平原湖区高速公路建设受软基分布、筑路材料缺乏及构造物密度大等多种因素的影响,在选线侧重点及平纵设计指标运用方面均有较大的弹性,直接影响到工程建设规模及工程建设质量。该文针对沿线地质、沿线生态、交叉条件及环境协调等方面,分析提出了平纵面设计的原则及思路。 The construction of expressway in plain Lake area is affected by many factors such as the distribution of soft foundation, the lack of road materials and the density of structural objects. It has greater flexibility in the selection of key points and the application of design indexes of plain and vertical, which directly affect the construction of the project Scale and construction quality. This paper analyzes and puts forward the principle and idea of ​​flat surface design in terms of geology along the route, ecology along the route, crossing conditions and environment coordination.